Gray-Scott Reaction-Diffusion Algorithm
In a nutshell: two substances (A and B) are poured over a surface. The substances react with each other, similar to a chemical reaction. They also spread out over the available surface.
For more information, see Reaction-diffusion systems on Wikipedia .
The visualisation doesn't work on most mobiles, because it requires the
OES_texture_float
WebGL extension. Sorry everyone!